NASA satellites and astronauts have captured images of many natural wonders and disasters on Earth. Let’s get acquainted with some of them. Raikok Volcano The Raikok volcano on Kuril Island rarely erupts. The last eruption on the small oval-shaped island was in 1994. This period of inactivity of the subsequent Raikok ended on June 22,…
From the history of science we can find many revolutions that have changed and corrected human perceptions of the universe. Through Copernicus, a revolution took place that established a heliocentric world instead of a world centered on the earth. Earth was transformed into a small planet orbiting the star Sun. Later, man saw a new…
After nearly 20 years of development and 16 launch delays, the James Webb Space Telescope (JWST) is almost ready. Set to launch on 31 October 2021, the largest space observatory ever built is set to revolutionise our understanding of the cosmos and help solve some of the Universe’s greatest mysteries.Instead or orbiting the Earth, Webb…
Chandrayaan 2 Orbiter has been sending high resolution images of the Moon and other scientific data to Earth for two years. ISRO is conducting an online Lunar Science Workshop on Septemper 6-7. In addition, data and images collected by Chandrayaan 2 orbiter will be made available in the public domain. Chandrayaan 2 was mentioned in…
The hottest day on Mars is 20 degrees Celsius at the equator. The night can go up to minus 153. The latter is characterized by strong dust storms. The surface appears to be dry but water is expected to flow to the bottom. Take a look at the day given by the vehicles that landed…
Infrared radiation from a black body is analyzed and used to determine its temperature. The object is seen in the color of brass. Activity. First, the pressure is reduced by means of a vacuum pump. The temperature is then reduced with liquid nitrogen. The black body is then placed in front of the source. The…
Astrosat is India’s first space telescope. The telescope can observe everything from distant galaxies to black holes. Launched September 28, 2015. The ASTROSAT, which weighs 1513 kilograms, orbits the equator at a distance of 650 km from Earth. Astrosat controls ISRO’s Mission Operations Complex (MOX) in Bangalore. The astrosatellite has five payloads (observational instruments) capable…
Everyone has heard of the electromagnetic spectrum. It is a collection of all wavelengths and frequencies of light, from radio and microwave to ultraviolet and gamma. The light we see is called the “visible” part of the spectrum. The rest of the frequencies and waves are invisible to our eyes, but can be detected with…
Can we believe that man used a device like an analog computer two thousand years ago …? But that is the reality. One such device that still amazes researchers today is the Antiquator mechanism, which is housed in the National Archaeological Museum in Athens, Greece. In ancient times, ships sailing from Asia Minor to Italy…
